Use of PFPE lubricant in automotive applicantions

摘要

A motor ( 10 ) for a vehicle includes a stator assembly ( 14 ) and a rotor assembly ( 16 ). Bearing structure ( 20, 22 ) support the rotor assembly to permit rotation of the rotor assembly with respect to the stator assembly. A shaft ( 30 ) is threadedly engaged with the rotor assembly and is constructed and arranged such that rotation of the rotor assembly causes linear movement of the shaft. A perfluoropolyether (PFPE) based lubricant ( 38 ), having an thermal functionality upper temperature limit of over +200° C., lubricates at least the bearing structure.